YC forged his first piton at Great Pacific Iron Works, the evolutionary beginning of Patagonia. Taken from an early GPIW catalog, the men's Patagonia Iron Works T-Shirt features an early sketch of Fitz Roy rendered on organic cotton with PVC- and phthalate-free inks. Taped shoulder seams and rib neck won’t chafe under a pack. Coverstitched sleeves and hem provide a clean finish.